Am using blackberry pearl8100 I can't download twitter more over I download 2go massager but it's tell me that the application 2go contain my fire wall which is not surport by my mobile and the BlackBerry is also running slows.Posted via BlackBerryForums.com Mobile

Please do not use text speak. It is much too difficult to read.

Can you please explain your problem in more detail, including exact error messages.

The 8100 has limited memory, plus it is an old device. Many apps are designed for a specific model and OS. Make sure the apps you are trying to install are for your specific BB.